Description
reprepro 1.3.0 through 2.2.3 does not properly verify signatures when updating repositories, which allows remote attackers to construct and distribute an ostensibly valid Release.gpg file by signing it with an unknown key, related to the update command.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | reprepro | 2.2.4-1 | — |
| Debian 13 | reprepro | 2.2.4-1 | — |
| Debian 12 | reprepro | 2.2.4-1 | — |
| Debian 4.0 | reprepro | 1.3.1+1-1 | DSA-1394-1 |
Advisories 1
- DSA-1394-1 reprepro - authentication bypass Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1394 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5%3Bfilename=interdiff%3Batt=1%3Bbug=440535
- 25537 vdb-entry
- 40172 vdb-entry
- 27334 third-party-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=440535
- 26678 third-party-advisory
- http://alioth.debian.org/frs/shownotes.php?release_id=1031